When we've no data to return from the interrupt endpoint, return NAK rather
then a 0 length packet.
CC: Alon Levy <al...@redhat.com>
Signed-off-by: Hans de Goede <hdego...@redhat.com>
---
hw/usb/dev-smartcard-reader.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/hw/usb/dev-smartcard-reader.c b/hw/usb/dev-smartcard-reader.c
index 190fcd6..de955b7 100644
--- a/hw/usb/dev-smartcard-reader.c
+++ b/hw/usb/dev-smartcard-reader.c
@@ -1002,6 +1002,8 @@ static void ccid_handle_data(USBDevice *dev, USBPacket *p)
"handle_data: int_in: notify_slot_change %X, "
"requested len %zd\n",
s->bmSlotICCState, p->iov.size);
+ } else {
+ p->status = USB_RET_NAK;
}
break;
default:
--
1.8.0
